iOS 8.1.1 (build 12B436) is an official Apple over-the-air update for the iPhone 6+, released on 2014-11-17T18:06:07Z. The update package is 64.65 MB. This is a delta (partial) update that requires 8.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 542748fb35ac136461ab2e5bd6249a58ac0fcd13.zip.